Home / 143,099.00-197,466.72-79,431.78

Finding the Fourth Proportional to 143,099.00, 197,466.72 and 79,431.78

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Solution

The fourth proportional to 143,099.00, 197,466.72 and 79,431.78 is: 109,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,099.00 : 197,466.72 = 79,431.78 : x
  2. Step 2: Convert to fraction form
    143,099.00/197,466.72 = 79,431.78/x
  3. Step 3: Cross multiply
    143,099.00x = 197,466.72 × 79,431.78
  4. Step 4: Simplify right side
    143,099.00x = 15,685,133,851.90
  5. Step 5: Solve for x
    x = 15,685,133,851.90/143,099.00
  6. Step 6: Final answer
    x = 109,610.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.